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Method and apparatus for restricting access to private information in domain name systems by filtering information

  • US 5,958,052 A
  • Filed: 07/16/1996
  • Issued: 09/28/1999
  • Est. Priority Date: 07/15/1996
  • Status: Expired due to Term
First Claim
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1. A subsystem in a domain name system that filters information and restricts access to private information of a first domain, the first domain being coupled to a second domain and the first and second domains each comprising a plurality of devices, the subsystem comprising:

  • a switching device that receives a first communication from a first device of the first domain being directed to a device of the second domain, the communication including a first request for private information of the first domain, the switching device redirecting the first request to a second device in the fist domain; and

    a filtering device that receives a second communication from the second domain destined to the first domain, wherein the filtering device generates filtered information by removing be private information of the fist domain from message data contained in the second communication and forwards the filtered information to one of the plurality of devices of the first domain.

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